131512740346 has 64 divisors (see below), whose sum is σ = 219035456640. Its totient is φ = 58838169600.

The previous prime is 131512740329. The next prime is 131512740347. The reversal of 131512740346 is 643047215131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131512740347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104457465 + ... + 104458723.

It is an arithmetic number, because the mean of its divisors is an integer number (3422429010).

Almost surely, 2^131512740346 is an apocalyptic number.

131512740346 is a deficient number, since it is larger than the sum of its proper divisors (87522716294).

131512740346 is a wasteful number, since it uses less digits than its factorization.

131512740346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951.

The product of its (nonzero) digits is 60480, while the sum is 37.

Adding to 131512740346 its reverse (643047215131), we get a palindrome (774559955477).

The spelling of 131512740346 in words is "one hundred thirty-one billion, five hundred twelve million, seven hundred forty thousand, three hundred forty-six".